stiriss



.l. STJRISS.

ENVELOP MAKING MACHINE.

APPLICATION FILED DEC.24, I9I9.

,4 TTORNEY l. STIRISS.

ENVELOP MAKING MACHINE.

APPLICATION FILED DEC.24| 199.

1,371,270. PatentedMar.15,1921-.

5 SHEETS-SHEET 3- INVENTOR, Jacob ,S'Cirss,

A TTORNEY .l. STIRISS.

ENVELOP MAKING MACHINEL APPLICATION FILED 056.24, 1919.

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ENVELOP MAKING MACHINE.

APPLICATION FILED DEC.24, I9l9- 1,371,270. Patented Mar. 15,1921.

5 SHEETSSHEET 5.

INVENTOR, Jacob ,Szniss,

A TTORNEY PATENT ()FFICE.

JACOB STIRISS, OF NEW YORK, N. Y.

ENVELOP-MAKING MACHINE.

Specification of Letters Patent.-

Patented Mar. 15, 1921.

Application filed December 24, 1919. Serial No. 347,076.

T all whom it may concern.

Beit known that I, JACOB STIRISS, a citizen of the United States, residing at New York, New York county, and New York State, haveinvented certain new and useful Improvements in Envelop-Making Machines, of which the following is a specification. V V

This invention relates to envelop machines, and its object is to provide means to select a blank form, feed the same into adjustable creasing rolls for both side and end flaps, to facilitate the folding of the same, paste them and successively drop the same on carrier belts and after a predetermined number has been accumulated to separate the same for bundling.

The operations are performed by simple and compact parts and combined in a machine comprising a suction rocker that separates the blank from its stack and throws its lower end into resilient jaws carried in drums on shafts that carry wheels having creasing blades and rubber rings for the blades to act in.

The wheels also carry a lateral creasing blade adapted to be adjusted with relation to the feeding of the blank to deal with envelops of diiferent sizes or shapes and the blank after the initial lateral and side creasing moves freely between rollers with a' second lateral creasing blade that moves only a fraction of the rotation of the layer wheels and drums and only when the creasing is to be done.

The following work consists of binding and folding the sides and the ends and pasting one of the latter.

These and other details and objects of the invention are more fully described in the following specification, set forth in the ap pended claims and illustrated in the accompanying drawings, wherein:

Figurel is a front elevation of the machine,

Fig.

Fig. of the Fig.

2 is a side elevation of the same.

is an elevation of the opposite side machine, 4 is a plan view, 5 is an enlarged viewof the gripping and the creasing wheels, 6 is an end view of the same, 7 is a cross sectional view showing the second lateral creasing means.

Fig. 8 is a detail. sectional View of the creasing rollers and the folding plate.

1 .1. drums Ei r 1g.

Fig. 9 is a sectional view through the rack elevator nut,

Fig. 10 is a vertical sectional View through the suction finger for the blank, 7

Fig. 11 is a sectional view through the creasing wheels and rollers,

Fig. 12 is a detail view of the side flap turner,

Fig. 13 is a detail view of the flap folding finger, V

Fig. 1 1 shows a means for packing and compressin a predetermined number of envelops, V

Fig. 15 shows the blank before it the main creasing wheels,

The invention is especially adapted to simplify the mechanism usually employed in making envelops from blanks out in advance and stacked on the racks 10 that are adjustably secured. by means of the bolts 11 to a slotted cross bar 12, the latter being supported at each end by the brackets 13, projecting from sleeves 14, playing on the screws 15. To adjust the racks 10, they are turned on the bolts 11, so that the angles of the two sides are raised or lowered using the bolts 11 as centers, to provide for any irregularity in the blank while the sleeves 14, inclose nuts 16, carrying the worm gear wheels 17, that is engaged by similar wheels 18, at the ends of a shaft 19, which is provided with the hand wheel 20, for rotating the shaft and worms and raising or lowering the rack to provide for different sizes of blanks.

When the stock of blanks are thus located on the racks they extend in a slightly inclined position above the bar 21, consisting of tube mounted on trunnions 22, with ball leaves bearings or other friction means so as to offer little or no resistance to the passage of a blank which may be drawn over it.

Back of the blanks and above the bar 21, is mounted a hollow finger 28, carried by the shaft 24, supported at the outer ends of the rocking arms 25 and the latter are pivoted on the frame adjacent the trunnions 22 and as shownin Fig. 9, the finger has an opening at its upper end while the lower end carries a flexible tube 26, connected with the suction pump 27 oscillating at one side of the machine frame andoperated by the crank arm 28. on a stud 29.

The rocking arms 25, carry rollers 25 which are operated on by the large cams 30, at each side of the machine and on the shaft 31, which with the shaft 32, also carries the creasing wheels 33, and 34, and the gripping.

drums 35 and 36, the arms having said rollers, that travel on the outer face of the cams and oscillate the finger 23, bringing the opening at its upper end against one of the blanks on the racks 10, at the moment the piston of the pump 27, starts upward and air is drawn inward. The suction thus provided causes the blank to adhere to the finger which at that moment moves backward carrying the lower end of the envelop blank between the gripping jaws 38 in the drums 35. These jaws 38, have rollers 39, at their outer ends to allow of a moderate tension on the blank, in consequence of the increasing pitch of the jaws as they pass the vertical and tends to increase the speed of movement of the said blank, which is drawn into the creasing wheels 33 and 34. The jaws 38 are at their lower ends fitted in sockets in the hubs of the drums and in the shafts 31 and 32, and

beneath the jaws are coiled springs 40, to

force the former outward and they are held against total release by the pins 41, playing in slots in the jaws.

The creasing wheels 33 and 34, are of the same diameter, the latter having a circumferential blade 42, while the wheels 33, are grooved around its circumference and into the groove is placed a rubber band 43, directly below the blade and as the blank passes between the wheels, the creases are made at the sides of the blanks, so that the side flapsmay be folded accurately.

A cross bar 44, connects the wheels 34 and carries a blade 45, in its outer face while a similar bar with a strip of rubber 46, connects the other wheels 33,and the two sets of wheels are so adjusted that the blade 45, enters the adjacent slot and plays on the strip 46, and consequently creases the blank at the proper point for the fold of the front end flap of the envelop.

While the drums 35 and 36 are permanently secured to their respective shafts, the wheels 33 and 34, are adjustable both longitudinally and around their shafts, so that the creasing blade may be moved to or from the-gripping jaws to provide for envelops of different sizes and to form the creases at appropriate points.

Immediately to the rear of the gripping drums and the above described creasing wheels'are two additional creasing rollers 47 and 48, as shown in Figs. 4 and 11, and the former carries the blade 49, while the latter also has a longitudinal groove to contain a rubber strip 50, in which the blade partly embeds itself once during the revolution of the rollers. Normally these rollers are separated so that the blank may slide freely between them, but at the proper stage of this" movement, the rollers are rotated by a mutilated gear wheel 51, secured on the shaft 32, and whose few teeth mesh with an idle pinion 52, which rotates similar pinions 53, and 54, on the rollers and crease the bottom flap of the envelop. The adjustment of these rollers in the performance of their Before the blank completely leaves the creasing mechanism, it'is seized by carrier rollers 55, actuated by gearing at one side of the machine, and as shown in Fig. 12, and small rollers 55 carried by arms pivoted to folding blades 56 and under tension of springs which keep the rollers in contact or proximity with each other.

As the blank is thus moved forward, its side flaps enter recesses between the blades 56 and the beveled edgesof plates until the flaps engage the inwardly sloping vertical flanges 62, of the plates 57, and these flanges gradually carry the flaps to the vertical and in that position they pass between the blades 56 and the heads 63, of the flanges.

The brackets 58 are so adjusted in Fig. 4, that the envelop is to be just as wide as the space between the outer edges of the blades 56 and pass just within two normally upright fingers 64, that are carried by a shaft 65, and are thrown downward toward each other, turning the flaps into their completed position just before the envelop enters the finishing rollers 66 and 67.

It will thus be seen that the entire side flap folding mechanism is carried by the bracket 58 and that the blades, the flap raising flanges, the closing fingers and gearing are capable of simultaneous adjustment and with but one screw, having reverse threads for the two brackets.

As the envelop passes toward these rollers, a blade 68, carried by arms 69, descends to a point almost between. the rollers and on the crease of the bottom flap and at the same time the edge of the flap comes in contact with a paste roller 7 0, journaled in the arms 69 and the envelop with its pasted flap is folded over at the crease and is drawn into the rollers.

The roller 70, collects its paste from the ordinary paste pot 71, having a feed roller 72', at one of its upper corners and with each elevation of thearins 69, the roller 70, comes in contact with the roller 72, and collects a supply of paste. The arms 69, are secured on a shaft 73, playing in the frame of the machine and having crank arms 74, at each end, which support one end of an oscillating rod 75, with a roller 76, at the other end and actuated by the cam 77, on the shaft 31, and adjacent the cam 30, a third cam 78, is carried on the same shaft and oscillates a rod 7 9, with roller 80, that plays on the irregular edge of the cam and the rod rocks the crank arm 81, whose shaft has on its inner end a gear wheel 82, that meshes with the teeth on the under side of a bar 83, which carries at its outer end a bevel gear 8 1, to mesh with a similar gear Wheel on the shaft 65, that carries the finger 64, so that as the cam rotates, it rocks the crank arm and partly rotates its shaft and the Wheels 82. The bar is substantially a mutilated gear that must move over the wheel 82, as the plate '57, in which it is journaled, is adjusted and consequently, the teeth of the bar and the wheel are always in mesh and rotate simultaneously to rock the folding finger 64, at each side of the machine.

The pasting of the side flaps may be accomplished by the wheels shown in Figs.

1 and 4, and where it will be seen thata paste pot 85 is mounted on a tie rod 86,

near the front of the machine and in the.

same dips a wheel 87, that carries the paste to the side flap of a blank that is traveling through the creasing wheels. The wheel 87, is mounted on the shaft 31 and shaft 32, carries a grooved wheel 88, to support the upper side of the flap and insure the proper disposal of the paste. These two wheels are adjustable and it is obvious that the finger 64, on that side of the machine must be geared to fold down that flap first so that the dry flap may be afterward folded over it.

After the envelop has passed through the various operations and passed through the rollers 66 and 67, it is immediately engaged by a second set of rollers 90 and 91, and after leaving them, is directed by an inclined chute 92, to the belts 93, carried by pulleys 94c and 95, and directed toward the front of the machine.

It is desirable that the envelops be delivered in groups of a pre-determined number upon the belts andfor this purpose, a

ratchet mechanism is provided at each side.

of the machine to drive the said belts. At the left hand side of the machine, is shown a ratchet wheel 96, mounted on a shaft 97 and connected with a sprocket wheel 98, adapted to drive a second sprocket wheel '99, on the shaft of the rollers 94, through.

the medium of a chain 100. This ratchet riphery of the said wheel while the wheel 96 is depositing its ire-determined number of envelops.

The length of the link 107, as compared with link 103, gives a much longer stroke to the rod 106, and the swing of the pawl 105, is much greater than the pawl 101, so that when the former arts in the indent of wheel 1041, it turns the same the distance of the blank space of wheel 96, and suddenly advances the belts 93 an abnormal extent. When the envelops are therefore dropped with a regularity, on the belts until a certain number are deposited, this number is separated from the balance by a space so that the desired number may be gathered up for bundling.

Another form of detail for not only segregating a determined number of envelops but pressing them together to insure the retention of the gunimed flap until the paste dries, is shown in Fig. 1 1, where it will be seen that endless chains 108, are substituted for the belts 93 and at equal. spaces from each other are flexibly attached partitions.

109,, pivoted on the pintles of the chains geared together as indicated in Fig. 2 and the rods 75, 79 and 102, are provided with suitable tension to return them to their normay positions.

The device thus constitutes a substantial. and simple machine for selecting, creasing, folding, pasting, delivering and segregating envelops and the parts, when it is necessary.

may be easily and rapidly adjusted for envelops of different sizes.

By creasing the blanks at one operation.

and substantially simultaneously the accuracyof all the creases is assured as when these operations are carried out at distances apart and by separated mechanism the blank is apt to be misplaced and the creases made at different angles from each other.

All of the parts of this machine are readily accessible and are quickly adjusted or repaired and it is obvious that they may be otherwise arranged or modified without departing from the essential features above described or the scope of the appended claims.

What I claim as new is:

1. In an. envelop machine, the combination of selecting means, rollers comprising feeding and creasing means, laterally adjustable plates carrying folding means, and end folding means.

In an envelop machine, the combination of pa 'allel creasing means, means for adjusting the same, gripping jaws carried by the creasing means, plates carrying folding means and adjustable laterally, carrier rollers, and reciprocating end folders.

3. In. an envelop machine, the combina-- tion of parallel shafts. side creasing means on the shafts, end creasing means, means for adjusting the creasing means. carrier rollers, and adjustable laterally movable plates carrying folding means.

4:. In an envelop machine, the combiinition of parallel rotating shafts, cooperating creasing wheels, cooperating creasing bars carried by the wheels, means for adjusting the wheels and the bars, gripping means carried by the shafts, and laterally adjustable folding blades and fingers.

5. In an envelop machine, the coinbii'iation of rotating shafts, cooperating creasing wheels on the shaft and having circumferen tial blades and grooves, means for adjusting the wheels, cross creasing bars carried by the wheels, gripping means between the wheels, and laterally adjustable folders.

6. In an envelop machine, the combination of shafts, adjustable cooperating creasing wheels having circumferential blades and grooves, cross creasing bars adjustable in said wheels, drums on the shaft, cooperating gripping jaws in the drums, adjustable plates carrying folding blades and flanges, and adjustable folding fingers.

T. In an envelopmachine, the combination of shafts carrying wheels with cooperating blades and grooves and having sockets, cross creasing bars adjustable in the said sockets, drums carried by the shafts, radial gripping jaws carried by the drum, means for adjusting the bars with relation to the gripping jaws, and folding blades and plates adjustably carried in rear of the shafts.

8. In an envelop machine, the combination of shafts carrying wheels, circumferential blades in the wheels of one shaft playing in grooves with flexible bands in the wheels of the other shaft, sliding cross bars in the wheels, a blade carried by one of the bars and playing in a padded groove in the other bar, independently operated cross creasing means in the rear of the shafts and folding means behind the latter cross creasing means.

9. In an envelop machine, the combination of gripping means, shafts carrying the same, creasing wheels at each side of the gripping means, cross bars with creasing means and adjustable laterally and with relation to the same, intermittently operating cross creasing means back of the gripping means, and folding plates and blades at the rear of the intermittently operated means.

14). In an envelop machine, the combination of gripping means, creasing means, foldin plates hung from a bar, blades carried by the plate, carrier means on the bl ades, a folding finger operating at the end of each plate, and means for laterally adj usting the plates.

11. in an envelop machine, the combination of rotating creasing means, gripping means associated with the creasing means, a bar at the rear of said gripping means, adjustable plates hung from the bar, flanges and blades for folding the side flaps on an envelop, folding fingers at the ends of the blades and plate, and end folding means at the end of the plates.

l2. In an envelop machine, the combination of shafts carrying gripping and creasing means, cross creasing means at the rear of the shafts and rotated intermittently thereby, plates carrying folding blades, flanges and fingers; a bar carrying bracket supports for the plates, supporting rollers at the outer ends of the plates, adjusting screws for the plates, and a reciprocating folder and paster for the end flaps of the envelop.

13. In an envelop machine, the combination of shafts carrying side creasing means and an end creaser for an envelop blank, an intermittently operated end creaser be bind the shafts, carrier rollers, folding plates above the carrier rollers, blades on the plates and having cooperating carrier rollers, folding flanges adjacent the blades, oscillating fingers at the ends of the flanges and blades, and means for shifting the fingers and rollers while in operation.

l-l. in an envelop machine, the combination of rotating shafts, creasing rollers and grippers on the shafts, intermittently moving creasing rollers, a bar, brackets adapted to slide on the bar, plates carried by brackets and having rollers at their outer ends, lateral supports for the rollers, screws to adjust the plates, folding blades, carrier rollers and oscillating fingers carried by the plates and adjustable while in operation;

a reciprocating blade to operate on theend folds, and a paste]? for the folds.

15. In an envelop machine; the combination of side and end creasin means for an envelop blank, means for ad usting the distances between the creases without removing the parts from the machine, means for folding and pasting the side flaps of the envelop, means for altering the width between the folding means without removing the parts of the machine, pasting means at the rear of the machine, and a reciprocating end folder,

16. In an envelop machine, the combinaplates carrying folding blades and flanges and oscillating fingers, means for adjusting said plates, a paste pot and roller at the rear of the machine, and a reciprocating blade adapted to collect paste from the roller and transfer it to the flaps of the blank envelop.

in testimony whereof, I have signed my name to this specification this 19th day of December, 1919.

JACOB STIRISS. 

